Furnace



Jan. 16, 1934. R. JOHNSON FURNACE 2 6, 1931 2 Sheets-Sheet l E TI/VIIZ/ENTOR Leon o zzson BY aab xfl g Fla. 2

Jan. 16,1934. L, R JOH SON 1,943,537

FURNACE Filed Aug. 26, 1931 2 Sheets-Sheet 2 INVENTUR Leon R. Johnson Patented Jan. 16, 1934 PATENT OFFICE FURNACE Leon R. Johnson, Wichita, Kans.

Application August 26, 1931. Serial No. 559,387

1 Claim.

My invention relates to improvements in furnaces.

The object of my invention is to provide a furnace adaptable to gas as a fuel.

A further object of my invention is to provide a circulatory system within the furnace whereby the heat units will be practically dispensed from the storage chambers prior to exhaustion from the furnace.

A still further object of my invention is to flare the entrance to the lateral flues extending from the principal heating chamber to induce circulation thru pipes distributed in the heating chambers.

A still further object of my invention is to provide a furnace with grouped circulating pipes and a combustion chamber intermediately positioned to the groups of pipes, and a housing for the heated air to extend above the pipes and combustion chamber and conductor pipes to connect with the extreme top portion of the jacketed housing to acquire direct circulation.

A still further object of my invention is to provide a furnace having legs to support the body portion and space the same from the floor as accessible means for the free circulation of air passing thru the furnace.

These and other objects will hereinafter be more fully explained, reference being had to the accompanying drawings forming a part of this specification, and in which like characters will apply to like parts in the different views, and in which:

Fig. 1 is a sectional plan view of the furnace.

, Fig. 2 is a front elevation partly in section taken on line 22 in Fig. 1.

Fig. 3 is a sectional side View of the furnace.

Fig. 4 is a sectional view taken on line i4 in Fig. 1.

My invention herein disclosed consists of a jacketed shell mounted on legs 1 spacing the same well from the floor or other foundation on which it is placed.

The jacket comprises four sides composed of an inside wall 2 and an outside wall 3, the said walls being spaced apart as an insulating means against conduction of heat passing thru the shell. The upper extremity of the jacket is closed by a top 4, the latter being apertured to receive conduction pipes 5 that lead to the floor registers as may be required for the heated air to the different rooms of a structure, such as, dwellings or places of business. The lower extremity of the jacket is open for the introduction of air for the purpose of heating the same, the circulation of which is shown by arrows in Fig. 4.

It will be understood that the jacketed form is rectangular in cross section and having housed therein a combustion chamber 6 that is equipped with a gas burner having the convention type of I feed pipes '7 and valves to control the flow of gas, the burner not being shown in the drawings.

The combustion chamber as shown in Fig. 1 has a pair of lateral flues 8 oppositely disposed, said laterals communicating with the combustion chamber and connecting therewith by a flared portion 9 of their walls respectively, by which means the heated gas in the combustion chamber is freely dispensed into the laterals without obstruction as usually occurs when right angle corners are imposed at the entrance.

On each side of the said lateral fiues are positioned vertically disposed conductors each of which are provided with a heating drum 10 rectangular in .cross section and having a tube 11 concentrically positioned and extending therethru, the ends of the latter being open for free circulation of air passing therethru as heated. The ends of each of the said heating drums are closed as at A, all joints being welded and made gas proof.

The method of circulation from the combustion chamber to the flue is thru the medium of a plurality of heating drums 10 thru which the tubes 11 extend respectively, it being understood that the space between the tubes and heating drums is for the conduction of the circulation above referred to and connections are as follows:

In Fig. 1 is shown heating drums B and C, each of which is connected at its upper extremity to U the upper extremity of its respective lateral flue 8 by a short length of pipe 12, while the lower end of the said drums are connected to the corresponding drums oppositely as at D and E by a pipe 13. The extreme upper end of the last said heating drums are connected to a manifold 14 by a pipe 15. Similar heating drums F, G, H, and I are connected in like manner and being so arranged the heat accumulation in the combustion chamber is conveyed thru the said heating drums to the manifold which is horizontally positioned and has a pipe 16 to connect to the chimney not shown.

It is now clearly shown how the heating area is increased and distributed within the shell from whence the air heated thereby is conveyed thru the conductors 5 extending from the top of the jacketed chamber.

It will be understood that this method of conduction from the combustion chamber to the chimney is a means to retain and utilize practically all of the heat units before passing into the manifold.

Positioned in the front of the furnace and extending therethru is a water container 17 providing a humidifying means when the said container is filled with Water, which is accomplished by introduction of water at the outside as at J. The inner portion being open at the top provides for evaporation into the heating chamber as the water is heated and is so arranged that the opening thru which the said container extends is well trapped keeping the same filled with water.

While I have shown and described the lower extremity of the jacket being spaced upward from the floor, I do not wish to be restricted to such alone as the same may extend downward fitting snugly on the floor level and in the case of the latter, a cold air supply shaft may be employed to communicate therewith in close proximity to the fioor as means for supplying fresh air, other- Wise the air is free to enter the jacketed shell as above described, and such other modifications may be employed as lie within the scope of the appended claim. Having fully described my invention what I claim as new and desire to secure by Letters Patent is:

In a furnace, in combination, an insulated shell comprising end and side walls and a top enclosure, the bottom being open, a manifold positioned on one side of the shell and near the top thereof, a combustion chamber contained in the shell, a pair of lateral flues extending in opposite directions and communicating with the combustion chamber the side walls of the lateral flues adjacent the combustion chamber being flared outward toward the connection thereof with the combustion chamber, a pair of heating drums connected with one side of each lateral flue, a second pair of heating drums on the opposite side of each lateral flue and having connection with the first said heating drums adjacent the bottoms thereof, each drum of the last said pair connecting with the manifold adjacent the top of the drums.

LEON R. JOHNSON. 

